From 87125150ecb1a21daff9a95165d4357f80d68ec6 Mon Sep 17 00:00:00 2001
From: Mark Williams <mwp@mwp.id.au>
Date: Wed, 7 Dec 2022 19:55:15 -0700
Subject: [PATCH] drm/panel: panel-ilitek9881c: Crystalfontz support

Add support for Crystalfontz CFAF7201280A0-050Tx panel.

Signed-off-by: Mark Williams <mwp@mwp.id.au>
---
 drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 229 ++++++++++++++++++
 1 file changed, 229 insertions(+)

--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -3,6 +3,7 @@
  * Copyright (C) 2017-2018, Bootlin
  * Copyright (C) 2021, Henson Li <henson@cutiepi.io>
  * Copyright (C) 2021, Penk Chen <penk@cutiepi.io>
+ * Copyright (C) 2022, Mark Williams <mark@crystalfontz.com>
  */
 
 #include <linux/delay.h>
@@ -887,6 +888,212 @@ static const struct ili9881c_instr w5529
 	ILI9881C_SWITCH_PAGE_INSTR(0),
 };
 
+static const struct ili9881c_instr cfaf7201280a0_050tx_init[] = {
+	//ILI9881C PAGE3
+	ILI9881C_SWITCH_PAGE_INSTR(3),
+	//GIP_1
+	ILI9881C_COMMAND_INSTR(0x01, 0x00), //added
+	ILI9881C_COMMAND_INSTR(0x02, 0x00),
+	ILI9881C_COMMAND_INSTR(0x03, 0x73),
+	ILI9881C_COMMAND_INSTR(0x04, 0x00),
+	ILI9881C_COMMAND_INSTR(0x05, 0x00),
+	ILI9881C_COMMAND_INSTR(0x06, 0x0A),
+	ILI9881C_COMMAND_INSTR(0x07, 0x00),
+	ILI9881C_COMMAND_INSTR(0x08, 0x00),
+	ILI9881C_COMMAND_INSTR(0x09, 0x01),
+	ILI9881C_COMMAND_INSTR(0x0A, 0x00),
+	ILI9881C_COMMAND_INSTR(0x0B, 0x00),
+	ILI9881C_COMMAND_INSTR(0x0C, 0x01),
+	ILI9881C_COMMAND_INSTR(0x0D, 0x00),
+	ILI9881C_COMMAND_INSTR(0x0E, 0x00),
+	ILI9881C_COMMAND_INSTR(0x0F, 0x1D),
+	ILI9881C_COMMAND_INSTR(0x10, 0x1D),
+	ILI9881C_COMMAND_INSTR(0x11, 0x00),
+	ILI9881C_COMMAND_INSTR(0x12, 0x00),
+	ILI9881C_COMMAND_INSTR(0x13, 0x00),
+	ILI9881C_COMMAND_INSTR(0x14, 0x00),
+	ILI9881C_COMMAND_INSTR(0x15, 0x00),
+	ILI9881C_COMMAND_INSTR(0x16, 0x00),
+	ILI9881C_COMMAND_INSTR(0x17, 0x00),
+	ILI9881C_COMMAND_INSTR(0x18, 0x00),
+	ILI9881C_COMMAND_INSTR(0x19, 0x00),
+	ILI9881C_COMMAND_INSTR(0x1A, 0x00),
+	ILI9881C_COMMAND_INSTR(0x1B, 0x00),
+	ILI9881C_COMMAND_INSTR(0x1C, 0x00),
+	ILI9881C_COMMAND_INSTR(0x1D, 0x00),
+	ILI9881C_COMMAND_INSTR(0x1E, 0x40),
+	ILI9881C_COMMAND_INSTR(0x1F, 0x80),
+	ILI9881C_COMMAND_INSTR(0x20, 0x06),
+	ILI9881C_COMMAND_INSTR(0x21, 0x02),
+	ILI9881C_COMMAND_INSTR(0x22, 0x00),
+	ILI9881C_COMMAND_INSTR(0x23, 0x00),
+	ILI9881C_COMMAND_INSTR(0x24, 0x00),
+	ILI9881C_COMMAND_INSTR(0x25, 0x00),
+	ILI9881C_COMMAND_INSTR(0x26, 0x00),
+	ILI9881C_COMMAND_INSTR(0x27, 0x00),
+	ILI9881C_COMMAND_INSTR(0x28, 0x33),
+	ILI9881C_COMMAND_INSTR(0x29, 0x03),
+	ILI9881C_COMMAND_INSTR(0x2A, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2B, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2C, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2D, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2E, 0x00),
+	ILI9881C_COMMAND_INSTR(0x2F, 0x00),
+	ILI9881C_COMMAND_INSTR(0x30, 0x00),
+	ILI9881C_COMMAND_INSTR(0x31, 0x00),
+	ILI9881C_COMMAND_INSTR(0x32, 0x00),
+	ILI9881C_COMMAND_INSTR(0x33, 0x00),
+	ILI9881C_COMMAND_INSTR(0x34, 0x04),
+	ILI9881C_COMMAND_INSTR(0x35, 0x00),
+	ILI9881C_COMMAND_INSTR(0x36, 0x00),
+	ILI9881C_COMMAND_INSTR(0x37, 0x00),
+	ILI9881C_COMMAND_INSTR(0x38, 0x3C),
+	ILI9881C_COMMAND_INSTR(0x39, 0x00),
+	ILI9881C_COMMAND_INSTR(0x3A, 0x40),
+	ILI9881C_COMMAND_INSTR(0x3B, 0x40),
+	ILI9881C_COMMAND_INSTR(0x3C, 0x00),
+	ILI9881C_COMMAND_INSTR(0x3D, 0x00),
+	ILI9881C_COMMAND_INSTR(0x3E, 0x00),
+	ILI9881C_COMMAND_INSTR(0x3F, 0x00),
+	ILI9881C_COMMAND_INSTR(0x40, 0x00),
+	ILI9881C_COMMAND_INSTR(0x41, 0x00),
+	ILI9881C_COMMAND_INSTR(0x42, 0x00),
+	ILI9881C_COMMAND_INSTR(0x43, 0x00),
+	ILI9881C_COMMAND_INSTR(0x44, 0x00),
+	//GIP_2
+	ILI9881C_COMMAND_INSTR(0x50, 0x01),
+	ILI9881C_COMMAND_INSTR(0x51, 0x23),
+	ILI9881C_COMMAND_INSTR(0x52, 0x45),
+	ILI9881C_COMMAND_INSTR(0x53, 0x67),
+	ILI9881C_COMMAND_INSTR(0x54, 0x89),
+	ILI9881C_COMMAND_INSTR(0x55, 0xAB),
+	ILI9881C_COMMAND_INSTR(0x56, 0x01),
+	ILI9881C_COMMAND_INSTR(0x57, 0x23),
+	ILI9881C_COMMAND_INSTR(0x58, 0x45),
+	ILI9881C_COMMAND_INSTR(0x59, 0x67),
+	ILI9881C_COMMAND_INSTR(0x5A, 0x89),
+	ILI9881C_COMMAND_INSTR(0x5B, 0xAB),
+	ILI9881C_COMMAND_INSTR(0x5C, 0xCD),
+	ILI9881C_COMMAND_INSTR(0x5D, 0xEF),
+	//GIP_3
+	ILI9881C_COMMAND_INSTR(0x5E, 0x11),
+	ILI9881C_COMMAND_INSTR(0x5F, 0x01),
+	ILI9881C_COMMAND_INSTR(0x60, 0x00),
+	ILI9881C_COMMAND_INSTR(0x61, 0x15),
+	ILI9881C_COMMAND_INSTR(0x62, 0x14),
+	ILI9881C_COMMAND_INSTR(0x63, 0x0E),
+	ILI9881C_COMMAND_INSTR(0x64, 0x0F),
+	ILI9881C_COMMAND_INSTR(0x65, 0x0C),
+	ILI9881C_COMMAND_INSTR(0x66, 0x0D),
+	ILI9881C_COMMAND_INSTR(0x67, 0x06),
+	ILI9881C_COMMAND_INSTR(0x68, 0x02),
+	ILI9881C_COMMAND_INSTR(0x69, 0x07),
+	ILI9881C_COMMAND_INSTR(0x6A, 0x02),
+	ILI9881C_COMMAND_INSTR(0x6B, 0x02),
+	ILI9881C_COMMAND_INSTR(0x6C, 0x02),
+	ILI9881C_COMMAND_INSTR(0x6D, 0x02),
+	ILI9881C_COMMAND_INSTR(0x6E, 0x02),
+	ILI9881C_COMMAND_INSTR(0x6F, 0x02),
+	ILI9881C_COMMAND_INSTR(0x70, 0x02),
+	ILI9881C_COMMAND_INSTR(0x71, 0x02),
+	ILI9881C_COMMAND_INSTR(0x72, 0x02),
+	ILI9881C_COMMAND_INSTR(0x73, 0x02),
+	ILI9881C_COMMAND_INSTR(0x74, 0x02),
+	ILI9881C_COMMAND_INSTR(0x75, 0x01),
+	ILI9881C_COMMAND_INSTR(0x76, 0x00),
+	ILI9881C_COMMAND_INSTR(0x77, 0x14),
+	ILI9881C_COMMAND_INSTR(0x78, 0x15),
+	ILI9881C_COMMAND_INSTR(0x79, 0x0E),
+	ILI9881C_COMMAND_INSTR(0x7A, 0x0F),
+	ILI9881C_COMMAND_INSTR(0x7B, 0x0C),
+	ILI9881C_COMMAND_INSTR(0x7C, 0x0D),
+	ILI9881C_COMMAND_INSTR(0x7D, 0x06),
+	ILI9881C_COMMAND_INSTR(0x7E, 0x02),
+	ILI9881C_COMMAND_INSTR(0x7F, 0x07),
+	ILI9881C_COMMAND_INSTR(0x80, 0x02),
+	ILI9881C_COMMAND_INSTR(0x81, 0x02),
+	ILI9881C_COMMAND_INSTR(0x82, 0x02),
+	ILI9881C_COMMAND_INSTR(0x83, 0x02),
+	ILI9881C_COMMAND_INSTR(0x84, 0x02),
+	ILI9881C_COMMAND_INSTR(0x85, 0x02),
+	ILI9881C_COMMAND_INSTR(0x86, 0x02),
+	ILI9881C_COMMAND_INSTR(0x87, 0x02),
+	ILI9881C_COMMAND_INSTR(0x88, 0x02),
+	ILI9881C_COMMAND_INSTR(0x89, 0x02),
+	ILI9881C_COMMAND_INSTR(0x8A, 0x02),
+	//ILI9881C PAGE4
+	ILI9881C_SWITCH_PAGE_INSTR(4),
+	ILI9881C_COMMAND_INSTR(0x6C, 0x15),
+	ILI9881C_COMMAND_INSTR(0x6E, 0x2B),
+	// VGH & VGL OUTPUT
+	ILI9881C_COMMAND_INSTR(0x6F, 0x33),
+	ILI9881C_COMMAND_INSTR(0x8D, 0x18),
+	ILI9881C_COMMAND_INSTR(0x87, 0xBA),
+	ILI9881C_COMMAND_INSTR(0x26, 0x76),
+	//Reload Gamma setting
+	ILI9881C_COMMAND_INSTR(0xB2, 0xD1),
+	ILI9881C_COMMAND_INSTR(0xB5, 0x06),
+	ILI9881C_COMMAND_INSTR(0x3A, 0x24),
+	ILI9881C_COMMAND_INSTR(0x35, 0x1F),
+
+	//ILI9881C PAGE1
+	ILI9881C_SWITCH_PAGE_INSTR(1),
+	ILI9881C_COMMAND_INSTR(0x22, 0x09),
+	//Column inversion
+	ILI9881C_COMMAND_INSTR(0x31, 0x00),
+	ILI9881C_COMMAND_INSTR(0x40, 0x33),
+	ILI9881C_COMMAND_INSTR(0x53, 0xA2),
+	ILI9881C_COMMAND_INSTR(0x55, 0x92),
+	ILI9881C_COMMAND_INSTR(0x50, 0x96),
+	ILI9881C_COMMAND_INSTR(0x51, 0x96),
+	ILI9881C_COMMAND_INSTR(0x60, 0x22),
+	ILI9881C_COMMAND_INSTR(0x61, 0x00),
+	ILI9881C_COMMAND_INSTR(0x62, 0x19),
+	ILI9881C_COMMAND_INSTR(0x63, 0x00),
+	//---P-GAMMA START---
+	ILI9881C_COMMAND_INSTR(0xA0, 0x08),
+	ILI9881C_COMMAND_INSTR(0xA1, 0x11),
+	ILI9881C_COMMAND_INSTR(0xA2, 0x19),
+	ILI9881C_COMMAND_INSTR(0xA3, 0x0D),
+	ILI9881C_COMMAND_INSTR(0xA4, 0x0D),
+	ILI9881C_COMMAND_INSTR(0xA5, 0x1E),
+	ILI9881C_COMMAND_INSTR(0xA6, 0x14),
+	ILI9881C_COMMAND_INSTR(0xA7, 0x17),
+	ILI9881C_COMMAND_INSTR(0xA8, 0x4F),
+	ILI9881C_COMMAND_INSTR(0xA9, 0x1A),
+	ILI9881C_COMMAND_INSTR(0xAA, 0x27),
+	ILI9881C_COMMAND_INSTR(0xAB, 0x49),
+	ILI9881C_COMMAND_INSTR(0xAC, 0x1A),
+	ILI9881C_COMMAND_INSTR(0xAD, 0x18),
+	ILI9881C_COMMAND_INSTR(0xAE, 0x4C),
+	ILI9881C_COMMAND_INSTR(0xAF, 0x22),
+	ILI9881C_COMMAND_INSTR(0xB0, 0x27),
+	ILI9881C_COMMAND_INSTR(0xB1, 0x4B),
+	ILI9881C_COMMAND_INSTR(0xB2, 0x60),
+	ILI9881C_COMMAND_INSTR(0xB3, 0x39),
+	//--- N-GAMMA START---
+	ILI9881C_COMMAND_INSTR(0xC0, 0x08),
+	ILI9881C_COMMAND_INSTR(0xC1, 0x11),
+	ILI9881C_COMMAND_INSTR(0xC2, 0x19),
+	ILI9881C_COMMAND_INSTR(0xC3, 0x0D),
+	ILI9881C_COMMAND_INSTR(0xC4, 0x0D),
+	ILI9881C_COMMAND_INSTR(0xC5, 0x1E),
+	ILI9881C_COMMAND_INSTR(0xC6, 0x14),
+	ILI9881C_COMMAND_INSTR(0xC7, 0x17),
+	ILI9881C_COMMAND_INSTR(0xC8, 0x4F),
+	ILI9881C_COMMAND_INSTR(0xC9, 0x1A),
+	ILI9881C_COMMAND_INSTR(0xCA, 0x27),
+	ILI9881C_COMMAND_INSTR(0xCB, 0x49),
+	ILI9881C_COMMAND_INSTR(0xCC, 0x1A),
+	ILI9881C_COMMAND_INSTR(0xCD, 0x18),
+	ILI9881C_COMMAND_INSTR(0xCE, 0x4C),
+	ILI9881C_COMMAND_INSTR(0xCF, 0x33),
+	ILI9881C_COMMAND_INSTR(0xD0, 0x27),
+	ILI9881C_COMMAND_INSTR(0xD1, 0x4B),
+	ILI9881C_COMMAND_INSTR(0xD2, 0x60),
+	ILI9881C_COMMAND_INSTR(0xD3, 0x39),
+};
+
 static inline struct ili9881c *panel_to_ili9881c(struct drm_panel *panel)
 {
 	return container_of(panel, struct ili9881c, panel);
@@ -1071,6 +1278,20 @@ static const struct drm_display_mode w55
 	.height_mm	= 121,
 };
 
+static const struct drm_display_mode cfaf7201280a0_050tx_default_mode = {
+	.clock		= 72830,
+	.hdisplay	= 720,
+	.hsync_start	= 720 + 87,
+	.hsync_end	= 720 + 87 + 20,
+	.htotal		= 720 + 87 + 20 + 87,
+	.vdisplay	= 1280,
+	.vsync_start	= 1280 + 16,
+	.vsync_end	= 1280 + 16 + 8,
+	.vtotal		= 1280 + 16 + 8 + 16,
+	.width_mm	= 62,
+	.height_mm	= 1108
+};
+
 static int ili9881c_get_modes(struct drm_panel *panel,
 			      struct drm_connector *connector)
 {
@@ -1206,11 +1427,19 @@ static const struct ili9881c_desc w55294
 		      MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET,
 };
 
+static const struct ili9881c_desc cfaf7201280a0_050tx_desc = {
+	.init = cfaf7201280a0_050tx_init,
+	.init_length = ARRAY_SIZE(cfaf7201280a0_050tx_init),
+	.mode = &cfaf7201280a0_050tx_default_mode,
+	.mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE | MIPI_DSI_MODE_VIDEO,
+};
+
 static const struct of_device_id ili9881c_of_match[] = {
 	{ .compatible = "bananapi,lhr050h41", .data = &lhr050h41_desc },
 	{ .compatible = "feixin,k101-im2byl02", .data = &k101_im2byl02_desc },
 	{ .compatible = "nwe,nwe080", .data = &nwe080_desc },
 	{ .compatible = "wanchanglong,w552946aba", .data = &w552946aba_desc },
+	{ .compatible = "crystalfontz,cfaf7201280a0_050tx", .data = &cfaf7201280a0_050tx_desc },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ili9881c_of_match);
